BoatsNeptun 31-2

Neptun 31-2

Masthead Sloop · Fin keel, spade rudder · 1976–1992

A 1976-1992 masthead sloop featuring a 1.6-metre fin keel and a revised superstructure design with integrated windows

Designed by Anton de Dood Miglitsch.

LOA
Beam
Draft (max)
Displacement
Ballast
Hull type
Fin w/spade Rudder

Is it for you?

Character

Where this design lands on the numbers a shopper trusts — read straight from her own ratios.

LivelySea-kindly

Her moderate displacement on a moderate beam gives 25 — a moderate, middle-of-the-road motion.

Comfort ratio 25
CoastalBluewater

1.93 — just under the 2.0 offshore line; her beam is modest for her weight.

Capsize screening 1.93
LightHeavy

264 — moderately heavy for her waterline, a balanced cruising weight.

Displacement / length 264
EasygoingPowered-up

21.0 — plenty of sail for her weight; lively and quick to respond.

Sail area / displacement 21.0
TenderStiff

33% of her weight is ballast — on the tender side; she'll heel readily and want a reef sooner.

Ballast 33%

Powered-up and quick to accelerate — this one likes to sail.

The record

Full specifications

The complete reference set — tap any figure to switch between metric and imperial.

Dimensions
Weights
Ballast / displacement
33.3%
Rig & sail area
Rig
Masthead Sloop
Ratios
SA / displacement
21.0
Displacement / length
264.3
Comfort ratio
25.1
Capsize screening
1.93
Hull speed
6.8 kn
Pounds / inch immersion
945
Hull
Hull type
Fin w/spade rudder
Construction
Fiberglass
Production
Years built
1976–1992
Designer
Anton de Dood Miglitsch
Builder
Neptun Boote GmbH, Co. KG

Boats like this, on the water

Nobody has filmed this one — but these are close.

Comparable boats the fleet has on camera: same type, within a quarter of her length. Open the boat, or watch the video — a timestamp means she only appears in passing.

Spirit 329.48 mSame hull familyNear-identical lengthA Jacques De Ridder-designed IOR 23-footer built for nearly two decades as a stiff, masthead-rigged fin-keel sloop
Maxi Yachts 959.50 mSame hull familyNear-identical lengthA 9.5-metre masthead sloop produced for a decade, featuring a skeg-hung rudder for predictable coastal handling
Hunter Marine 319.55 mSame hull familyNear-identical lengthA Cortland Steck design featuring a B&R rig and a fin keel, built for coastal cruising between 1983 and 1987
Cal Boats 309.14 mSame hull family0.3 m shorterOffered with an optional tall rig, this masthead sloop served as the predecessor to the 2-30 series
Granada Yachts 309.18 mSame hull family0.3 m shorterA 30-foot fractional sloop with a 1.65-meter draft, designed for balanced, performance-oriented cruising
Contessa 329.75 mSame hull family0.3 m longerA 1973 London Boat Show winner with a skeg-hung rudder and a ballast-to-displacement ratio of 47 per cent

The family

Boats like this

Nearby designs by size, type, and era — worth a look alongside her.

Keep looking

Nothing filmed of this one yet

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